DUAL INSUFFLATION AND WOUND CLOSURE DEVICES AND METHODS
First Claim
1. A wound closure apparatus for use in connection with a surgery involving a body cavity having an inner wall, comprising:
- a puncture closure device including a shaft and a retractable snare disposed adjacent to a shaft distal end;
a guide configured to direct the puncture closure device into the body cavity, the guide including a radially expandable securing mechanism configured to be secured to the inner wall and a track for receiving the puncture closure device.
2 Assignments
0 Petitions
Accused Products
Abstract
A dual functioning instrument set, comprising a needle and guide, has not only the capabilities to enter and insufflate the abdominal cavity but also the ability of a suture passer to carry and retrieve suture for closure of the incision sites at the end of the procedure. The needle contains a deployable snare that is used to pass and retrieve suture. The guide is used to repeatedly locate the needle relative to the inner abdominal wall allowing for consistent placement of sutures. For insufflation purposes, obturator tips having different distal structures are provided for shielding the sharp needle tip after insertion through a body wall.
38 Citations
20 Claims
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1. A wound closure apparatus for use in connection with a surgery involving a body cavity having an inner wall, comprising:
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a puncture closure device including a shaft and a retractable snare disposed adjacent to a shaft distal end; a guide configured to direct the puncture closure device into the body cavity, the guide including a radially expandable securing mechanism configured to be secured to the inner wall and a track for receiving the puncture closure device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An obturator apparatus for use in connection with a surgery involving penetration through a body wall, comprising:
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a shaft including a sharp needle tip having a needle peak at a distal end; an obturator comprising a pointed yet blunt distal obturator peak movable between a proximal rest position and a distal operative position distal to the needle peak, the obturator peak being biased to the operative position; wherein the obturator peak in the rest position is located less than one mm from the sharp needle tip. - View Dependent Claims (11, 12, 13)
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14. An obturator apparatus for use in connection with a surgery involving penetration through a body wall, comprising:
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a shaft including a sharp needle tip at a distal end, the sharp needle tip comprising at least one cutting edge extending distally to a pointed needle peak; an obturator comprising a pointed yet blunt distal obturator peak movable between a proximal rest position and a distal operative position distal to the needle peak, the obturator tip being biased to the operative position, the obturator comprising at least one ramped surface extending from a base to the obturator peak, wherein the ramped surface is positioned proximally to the cutting edge when the obturator peak distally traverses the needle peak up to 5 mm. - View Dependent Claims (15, 16, 17, 18)
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19. A method of shielding a sharp needle tip of a surgical instrument after insertion through a body wall, comprising:
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distally biasing an obturator having an obturator body and a obturator peak to an operative position where the obturator peak is distal to a needle peak of the sharp needle tip; limiting a proximal movement of the obturator with respect to the sharp needle tip such that the obturator peak is never positioned more than 1 mm from the needle peak upon insertion of needle tip through the body wall; and automatically moving the obturator peak distally past the needle peak upon a drop in resistance from the body. - View Dependent Claims (20)
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Specification